package com.ysx.teacher.day20210922.ch10;

import com.ysx.teacher.day20210922.ch09.Ch09;

public class Ch007Test{

    public static void main(String[] args) {
        Ch007 ch007= new Ch007();
        // 此处的代码用来验证 protected 和什么都没有
        // public private ...
        //System.out.println(ch007.add(10,20));;
    }
}
